Ultra-wideband positioning through-wall self-compensating method and self-compensating system
An ultra-wideband, self-compensating technology, used in positioning, radio wave measurement systems, instruments, etc., can solve problems such as low accuracy and difficulty in positioning and navigation.
Active Publication Date: 2018-06-29
郑州国测智能科技有限公司
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Problems solved by technology
[0008] The purpose of the present invention is to address the deficiencies of the prior art, thereby providing a self-compensation method and self-compensation system for ultra-broadband positioning through walls, which solves the problem of a certain number of positioning base stations in an environment where there are many walls in the area. It is difficult to realize the positioning and navigation of people and objects in the area, and the accuracy is not high.
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[0058] The technical solutions of the present invention will be described in further detail below through specific implementation methods.
[0059] Such as figure 1 As shown, the present invention provides a self-compensation method for ultra-broadband positioning through walls, and the method includes the following steps:
[0060] Step 1: Perform wall-through static compensation for locating the synchronous clock of the base station.
[0061] Step 1.1, establish the "air-wall-air" medium refraction model:
[0062]
[0063] Among them, T is the transmitting base station, P is the incident point, R is the refraction point, S is the receiving base station, TP is the distance from the transmitting base station to the incident point, RS is the distance from the refraction point to the receiving base station, c is the speed of light, τ is the time delay , ε r is the relative permittivity of the wall;
[0064] Step 1.2, calculating the cosine value of the incident angle and t...
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The invention provides an ultra-wideband positioning through-wall self-compensating method and an ultra-wideband positioning through-wall self-compensating system. The ultra-wideband positioning through-wall self-compensating method comprises the following steps: 1, performing through-wall static compensation on synchronous clocks of positioning base stations; 2, judging whether an ultra-widebandpositioning signal transmitted by a positioning tag and received by the positioning base stations runs through a wall, and performing dynamic compensation on the ultra-wideband positioning signal whenthe ultra-wideband positioning signal is judged to run through the wall; 3, resolving positioning coordinates. The ultra-wideband positioning through-wall self-compensating system comprises a map data constructing unit, the positioning tag, the positioning base stations, an ultra-wideband self-compensating positioning unit and a terminal display unit, wherein the ultra-wideband self-compensatingpositioning unit comprises a primary through-wall judging unit, a secondary through-wall judging unit, an intelligent real-time compensating unit and a positioning resolving unit. Through the ultra-wideband positioning through-wall self-compensating method and the ultra-wideband positioning through-wall self-compensating system, the problems that in an environment with relatively many walls in a region, when the number of positioning base stations is fixed, positioning and navigation of people and items in the region are difficult to achieve, are not high in accuracy and the like are solved.
Description
technical field [0001] The invention relates to the technical field of wireless communication networks, in particular to a self-compensation method and a self-compensation system for ultra-broadband positioning through walls. Background technique [0002] With the continuous development of wireless communication network technology, precise location information services for people and objects have been widely used in many industries. However, in the complex environment of the region, the existing wireless positioning systems have the following shortcomings. More importantly, there is a lack of methods and systems for self-penetrating wall compensation: [0003] (1) The accuracy of positioning and navigation in the area is low. There are existing positioning technologies such as WiFi, Bluetooth, and zigbee, but the positioning accuracy is generally above 3 meters; [0004] (2) The anti-interference ability of positioning and navigation in the area is poor. The existing positi...
Claims
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Login to View More IPC IPC(8): G01S5/06G01S5/02
CPCG01S5/0242G01S5/06
Inventor 陈长宝李德仁侯长生郭振强郧刚卢建伟
Owner 郑州国测智能科技有限公司